Fixed creature hak name, added more quest persistence

Fixed creature hak name, added more quest persistence.

Co-Authored-By: Awetizmo <107700980+Awetizmo@users.noreply.github.com>

_module/utc/filtau.utc.json

@@ -42,7 +42,7 @@
   },
   "Conversation": {
     "type": "resref",
-    "value": "drowbasic"
+    "value": "cv_drowbasic"
   },
   "CRAdjust": {
     "type": "int",
@@ -790,7 +790,7 @@
   },
   "Tag": {
     "type": "cexostring",
-    "value": "Filtau"
+    "value": "NPC_FILTAU"
   },
   "Tail_New": {
     "type": "dword",